宝马7系发布会:看谁翻译得快、好,有分加哦!!
来源:百度文库 编辑:查人人中国名人网 时间:2024/10/06 13:41:29
In 21 centuries of today database extensively apply to network, it is also important means that the modern people can resolve the problems, such as the foreign land data processing, index and usage...etc..The development of the database system is close to 40 years of history, flying along with the multi-media technique, the space database technique and the calculator network to develop soon, the development of the database system is very quick, applying the realm more and more extensive, the demand enlarges increasingly, almost the every trades can not get away from the database system.But because of various reason such as:1, software breakdown:Such as the operate system mistake, the database system mistake 2, hardware breakdown:If the hard drive break down, the natural disaster make our database throw lose, the occurrence mistake etc., we need to study the instauration technique of the database.Erupt the insulation of the business for the sake of the assurance at the same time, the consistency of the assurance database.We also want to study to erupt some technique in the control.